[R-390] subchassis mounting nuts Q

[Flowertime01 at wmconnect.com]

Larry,

One real answer is an item called a "rivnut"

You find them in sizes that match the threads.

You drill out the current nut.
Drill a bevel with a bigger bit.
Insert the "rivnut."
Crunch it like a pop rivet by running a bolt and nut against the "rivnut".
This gives you a captive nut right where the original nut is located.

The trick is to shop the Internet and find some in the correct thread and 
in quantities under less than a 1000.

There are two styles of "rivnuts"
One style is flat top and finishes with a raised washer like top.
The other style is beveled and finishes flush on top.

Roger Ruszkowski